SpringBoot+Tess4j实现牛的OCR识别工具的示例代码

<!-- https://mvnrepository.com/artifact/net.sourceforge.tess4j/tess4j -->
<dependency>
  <groupId>net.sourceforge.tess4j</groupId>
  <artifactId>tess4j</artifactId>
  <version>4.5.3</version>
</dependency>

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>org.example</groupId>
  <artifactId>test-textocr</artifactId>
  <version>1.0-SNAPSHOT</version>
  <dependencies>
    <!-- https://mvnrepository.com/artifact/net.sourceforge.tess4j/tess4j -->
    <dependency>
      <groupId>net.sourceforge.tess4j</groupId>
      <artifactId>tess4j</artifactId>
      <version>4.5.3</version>
    </dependency>

  </dependencies>

</project>

package ocr;

import net.sourceforge.tess4j.ITesseract;
import net.sourceforge.tess4j.Tesseract;
import net.sourceforge.tess4j.TesseractException;

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.IOException;


/**
* ocr测试.
*
* @author huc_逆天
* @since 2021/1/12 17:42
*/
public class TestTextOcr {

  public static void main(String[] args) throws IOException {
    // 创建实例
    ITesseract instance = new Tesseract();

    // 设置识别语言

    instance.setLanguage("chi_sim");

    // 设置识别引擎

    instance.setOcrEngineMode(1);

    // 读取文件

    BufferedImage image = ImageIO.read(TestTextOcr.class.getResourceAsStream("/2.jpg"));
    try {

      // 识别

      String result = instance.doOCR(image);
      System.out.println(result);
   } catch (TesseractException e) {
      System.err.println(e.getMessage());
   }


 }
}

instance.setOcrEngineMode(0);